%0 Journal Article %A Luchezar L. Avramov %T Locally complete intersection homomorphisms and a conjecture of Quillen on the vanishing of cotangent homology %J Annals of mathematics %D 1999 %V 150 %N 2 %U http://geodesic.mathdoc.fr/articles/10.2307/121087/ %R 10.2307/121087 %F 10_2307_121087